Originally Sirin was a kind and caring girl, thinking of everyone as a friend. However, with the experiments in Babylon Tower killing all of her friends, she grew a complex for power and revenge, refusing to die, and suffering the abuse, she made the resolve to kill everyone in Schicksal. After her partial awakening, she exacted her revenge on the 322 scientists of Babylon Labs. Her heart was filled with a deep hatred for Schicksal and its valkyries, and was so exacted on the idea that they were